Science helps (videos) online?

[Sparrows-Song]

Someone here suggested the HippoCampus site, which I love and am using for older ds, as a supplement for Apologia Physical Science. However, it doesn't include "general" science content, so I'm wondering if anyone has found sites similar to HippoCampus where one can view free science topical videos to supplement a textbook.

Thanks in advance!

[MIch elle]

http://www.khanacademy.org/
http://www.neok12.com/

Bill Nye on Youtube
Eureka! on Youtube

[Sparrows-Song]

Thank you very much!